MR−03955
JS SERIES PUMPS
FM
APPROVED
PAGE C − 1
MAINTENANCE AND REPAIR
PUMP MAINTENANCE AND REPAIR − SECTION C
GENERAL INFORMATION
Review all SAFETY information in Section A.
Do not attempt to service the pump end
assembly unless all power to the motor
has been shut off at the control box;
otherwise, injury or death could result.
Use a lifting device with sufficient ca-
pacity. If slings or chains are used to
move the pump or components, make
sure that the load is balanced; other-
wise serious personal injury or death
could result.
The maintenance and repair instructions in this
manual are keyed to the sectional views, Figures
1 and 2, and the corresponding parts identification
lists. Refer to the separate Parts List Manual for re-
placement parts.
Select a suitable location, preferably indoors, to
perform required maintenance. All work must be
performed by qualified personnel.
The motor powering this pump is FM-Ap-
proved for Class 1, Division 1, Groups C
and D environments. All repairs to the
pump, other than seal, impeller and other
hydraulic components, must be per-
formed by a Gorman-Rupp authorized re-
pair facility or the factory. Any repairs to the
motor assembly performed by the custom-
er or an unauthorized repair facility ne-
gates the FM Approval and the motor war-
ranty.
This Maintenance and Repair Manual provides
troubleshooting and maintenance instructions re-
quired to properly diagnose operational problems,
and to service the pump hydraulic components.
Pump motor maintenance may be performed
only
by a Gorman-Rupp authorized repair facility, or the
factory. Otherwise, the pump warranty will be ne-
gated, and damage to the pump, and injury or
death to personnel can result. Contact the factory
for the authorized repair facility closest to you.
Check
TROUBLESHOOTING
, Section B to deter-
mine causes and remedies of pump problems.
Disassemble the pump only as far as required.
Lifting
Use lifting equipment with a capacity of
at least
five times the weight of the pump
, including the
weight of any options or customer-installed acces-
sories. The approximate maximum weight for this
pump is
441 lbs. (200 kg.)
. Discharge hose or pip-
ing
must
be removed before attempting to lift the
pump.
